Plumbing fittings

ABSTRACT

A unitary plumbing fitting for connecting a pair of bathrooms disposed symmetrically on opposite sides of a partition to soil and vent stacks comprises a body having a vertical passage connectable at its lower end with the soil stack and at its upper end with the soil or vent stack, a pair of horizontally diverging branches projecting radially outwardly and inclined upwardly from the body with their terminals extending horizontally away from each other for connecting to a pair of water closets on opposite sides of the partition, a horizontally diverging Y-connection between and merging with the diverging branches and body at their intersection and being initially similarly upwardly inclined from said body with the outer end of its stem and its arms substantially horizontal at a lower level than the terminals of the diverging branches for connection to a pair of bathtub drains on opposite sides of the partition, a vertical branch on the outer horizontal portion of the Y-connection stem connectable to a vent stack passing between the arms of the Y-connection, and an additional branch projecting from the body in a diametrically opposite direction from the Y-connection, at the same level and similarly upwardly inclined for connection to a pair of wash basin drains on opposite sides of the partition and to the vent stack.

United States Patent 11 1 Hezel et al.

[451 Jan. 16, 1973 54] PLUMBING FITTINGS 22] Filed: Oct. 8, 1970 211Appl. No.: 79,057

[52] us. c1. ..2ss/1s3, 4/2 11 [51] Int. Cl ..Fl6l 41/00 [58] Field ofSearch ..285/153, 152, 154, 155, 150; 4/211, 252 R, DIG. 7

Primary ExaminerDennis L. Taylor Attorney-Bede and Burgess 57 ABSTRACT Aunitary plumbing fitting for connecting a pair of bathrooms disposedsymmetrically on opposite sides of a partition to soil and vent stackscomprises a body having a vertical passage connectable at its lower endwith the soil stack and at its upper end with the soil or vent stack, apair of horizontally diverging branches projecting radially outwardlyand inclined upwardly from the body with their terminalsextendinghorizontally away from each other for connecting to a pair ofwater closets on opposite sides of the partition, a horizontallydiverging Y-connection between and merging with the diverging branchesand body at their intersection and being initially similarly upwardlyinclined from said body with the outer end of its stem and its armssubstantially horizontal at a lower level than the terminals of thediverging branches for connection to a pair of bathtub drains onopposite sides of the partition, a vertical branch on the outerhorizontal portion of the Y-connection stem connectable to 'a vent stackpassing between the arms of the Y-connection, and an additional branchprojecting from the body in a diametrically opposite direction from theY- connection, at the same level and similarly upwardly inclined forconnection to a pair of wash basin drains on opposite sides of thepartition and to the ventstack.

12 Claims, 6 Drawing Figures 'PATENTEDJMIB I975 3.71 l. 128

' sum 1 0r 4 3 23 INVENTORS: F WILLIAM J. HEZBL ROBERT J. NEUBERT WZWATTORNEYS INVENTORS:

WILLIAM J-. HEZEL ROBERT J. NEUB'ERT ATTORNEYS 'PATENTEDJ/m 16 ms SHEET0F 4 INVENTORS: WILLIAM J. HEZBL ROBERT J. QIEUBERT W;

ATTORNEYS PLUMBING FITTINGS BACKGROUND OF THE INVENTION 1. Field of theInvention The invention relates to plumbing fittings and particularly tofittings used in connection with pairs of water closets, bathtubs andwash basins.

2. The Prior Art The closest prior art to the present invention is afitting in which the water closet connections to the verticalcylindrical body of the fitting are in an upwardly inclined Y-connectionwith an upwardly extending vent branch at the intersection of its stemand arms which are connectable to the water closets and, at a lowerlevel, with their axes in the same vertical plane as the axis of thebody passage and the stern of the Y-connection are a pair ofdiametrically oppositely extending branches for connection to bathtuband wash basin drains, and to vent stack branches.

SUMMARY OF THE INVENTION The invention provides a unitary plumbingfitting for two water closets and two bathtubs in which a single ventsuffices for all four fixtures, and in which the waste pipes from allfour fixtures and from the wash basins enter the soil stack at the sameelevation on the same center line.

Objects and advantages of the invention include the provision of acommon vent for two water closets and two bathtubs, the elimination ofone or more fixture vents required with conventional fittings,minimizing projection of a fitting below the finished floor level tofacilitate shipping and installation, accommodation of vent stack inclosest possible relation to soil stack, and simplification of plumbingsystems by incorporation of the fitting.

The invention achieves a substantial saving in material over anyfittings of the prior art for the same general purpose.

It achieves a substantial saving of labor and in space A pair ofhorizontally diverging radial branches 7 of cylindrical shape areconnected to body I, with their axes intersecting each other on the bodyaxis. Radially outward of their intersection with the body branches 7are curved as at 9 to provide straight parallel intermediate sections 11symmetrically located with respect to body 1. At the ends of sections11, branches 7 are curved at 13 away from each other through 90 and areformed with oppositely facing connections 15 on a common horizontal axisfor a pair of back-to-back water closets C on opposite sides of apartition. Throughout their lengths, the axes of branches 7 lie inacommon plane normal to the vertical diametral plane of body 1 bisectingthe divergence of branches 7, and

inclined preferably in the order of 30 upwardly from 15, divergeshorizontally, to form horizontally arcuate arms 21, the axes of whoseterminals 23 are parallel to the axis of stem 17 and are arranged forconnection to the drain traps of a pair of bathtubs T. Y-connection stemhorizontal portion 19 is formed with an upstanding branch 27 with itsaxis at the intersection of the vertical axial plane of stem 17 toprovide,

at a level higherthan the intersection of the bathtub drain Y-connectionstem 17 with water'closet branches 7 and fitting body 1.

The divergenceof Y-connection arms 21 provides space for verticalpassage therethrough of a vertical occupied by incorporating in a singleunitary fitting the BRIEF DESCRIPTION THE DRAWINGS FIG. 1 is a plan viewof a fitting made in accordance with the invention.

vent stack 29, to which vent branch 27 is connected by a vertical pipe31 bent at its upper end for connection to stack 29.

' To provide a connection for a pair of wash basins B, an additionalbranch 33 is formed on body 1 diametrically opposite Y-connection stem17, with its axis inclined from the horizontal and intersecting thebody' '1 axis at a common point with the axes of branches 7 andY-connection stem 17.

' For connecting branch 33 to a pair of wash basins, a

connecting pipe 35 preferably extends axially from FIG. 2 is a sideelevation view of the fitting illustrated in FIG. 1. FIG.'3 is aperspective view of the fitting illustrated in FIGS. 1 and 2. I

FIG. 4 is a perspective view of a plumbing system, except for thefixtures, incorporating the fitting. FIG. 5 is an environmental planview showing the plumbing fitting, connections and fixtures.

FIG. 6 is an elevation view corresponding to FIG. 5.

DESCRIPTION OF THE PREFERRED EMBODIMENT The plumbing fitting comprisesan integral casting having a cylindrical body 1 defining a verticalpassage 3 arranged for connection at its opposite ends to sections 5 ofa soil-vent stack.

branch 33 and is then bent upwardly, where it mounts a cross fitting 37,the branches39 of which are con-v nected to the trapsof wash basin B. A'vent'pipe 41 ex- I tends vertically upward, and generally horizontallypast soil stack 5 to a junction with vent stack 29, thus venting washbasins-B.

It will be evident from the drawings that with our fitting all branchesfrom the fitting body to the fixtures are generally parallel to thegeneralplane of a partition,

of the invention and the exclusive use of any modifications as comewithin the scope of the appended claims is contemplated.

I claim:

1. A plumbing fitting comprising a body defining a .vertical passage, 3.pair of horizontally diverging branches connected in side-by-siderelation to each other and to said body and inclined upwardly therefrom,and a horizontally diverging Y-connection having its stern intersectingsaid branches and-said body at the intersection of said branches witheach other, said Y-connection being inclined upwardly from itsintersection with said diverging branches and said body, and a verticalbranch intersecting the stem of the Y- connection remote from theintersection of the same with said diverging branches, said verticalbranch forming a single vent connection for both said Y-connections andsaid branches.

2. A plumbing fitting according to claim 1 wherein the axes of the stemof said Y-connection and of said diverging branches lie in a commoninclined plane adjacent their intersection with each other and with saidbody.

3. A plumbing fitting according to claim 1 wherein said divergingbranches extend generally radially from said body for equal distancesand thereafter are parallel to each other a substantial distance.

4. A plumbing fitting according to claim 3 wherein the extremities ofsaid main branches are bent away from each other at 90 tothe parallelportions of said main branches.

' 5. A plumbing fitting according to claim 4'wherein the axes of saidmain branches lie in a common inclined plane throughout their lengths.

6. A plumbing fitting according to claim 5 wherein the axes of said stemof said Y-connection and of said main branches lie inparallel verticalplanes except at the inner and outer end portions of said main branches.

7. A plumbing fitting according to claim 6 wherein the axes of theradially outer portion of said Y-connection stem and the arms of saidY-connection liein a common horizontal plane, said vertical branchcommunicating with said outer portion of said Y-connection stem.

8. A plumbing fitting according to claim 7 including an additionalbranch intersecting said body at substantially the same level as saiddiverging branches and angularly displaced from said main branches.

9 A plumbing fitting according to claim 8 wherein the axes of saidadditional branch and of said Y-connection stem lie in a common verticalplane and intersect said body on opposite sides thereof.

10. A plumbing fitting according to claim 9 wherein the axes of saidmain branches and said additional branch are of similar inclination.

l l. A plumbing fitting according to claim 10 wherein and saidadditional branch is arran ed for connection to a pair of wash basinsand to a ver ical vent stack cmbraced by thev armsof the Y-connection,said'vertical branch of said Y-connection stem being arranged forconnection to the same vent stack.

1. A plumbing fitting comprising a body defining a vertical passage, apair of horizontally diverging branches connected in side-by-siderelation to each other and to said body and inclined upwardly therefrom,and a horizontally diverging Y-connection having its stem intersectingsaid branches and said body at the intersection of said branches witheach other, said Y-connection being inclined upwardly from itsintersection with said diverging branches and said body, and a verticalbranch intersecting the stem of the Y-connection remote from theintersection of the same with said diverging branches, said verticalbranch forming a single vent connection for both said Y-connections andsaid branches.
 2. A plumbing fitting according to claim 1 wherein theaxes of the stem of said Y-connection and of said diverging branches liein a common inclined plane adjacent their intersection with each otherand with said body.
 3. A plumbing fitting according to claim 1 whereinsaid diverging branches extend generally radially from said body forequal distances and thereafter are parallel to each other a substantialdistance.
 4. A plumbing fitting according to claim 3 wherein theextremities of said main branches are bent away from each other at 90*to the parallel portions of said main branches.
 5. A plumbing fittingaccording to claim 4 wherein the axes of said main branches lie in acommon inclined plane throughout their lengths.
 6. A plumbing fittingaccording to claim 5 wherein the axes of said stem of said Y-connectionand of said main branches lie in parallel vertical planes except at theinner and outer end portions of said main branches.
 7. A plumbingfitting according to claim 6 wherein the axes of the radially outerportion of said Y-connection stem and the arms of said Y-connection liein a common horizontal plane, said vertical branch communicating withsaid outer portion of said Y-connection stem.
 8. A plumbing fittingaccording to claim 7 including an additional branch intersecting saidbody at substantially the same level as said diverging branches andangularly displaced from said main branches.
 9. A plumbing fittingaccording to claim 8 wherein the axes of said additional branch and ofsaid Y-connection stem lie in a common vertical plane and intersect saidbody on opposite sides thereof.
 10. A plumbing fitting according toclaim 9 wherein the axes of said main branches and said additionalbranch are of similar inclination.
 11. A plumbing fitting according toclaim 10 wherein the axes of said main branches, said Y-connection stemand said additional branch intersect at a common point on the verticalaxis of said body.
 12. A plumbing fitting according to claim 6 whereinsaid body is arranged for connection to a soil stack, the terminals ofsaid main branches are arranged for connection to a pair of waterclosets, said Y-connection arms are arranged for connection to a pair ofbathtubs, and said additional branch is arranged for connection to apair of wash basins and to a vertical vent stack embraced by the arms ofthe Y-connection, said vertical branch of said Y-connection stem beingarranged for connection to the same vent stack.